for those blaming it on AFM, the LSx series motors, which includes all "small block" V8's made by GM from 1999 forward, have been known for oil consumption since 1997 when the first motor went in the Corvette.

WARNING: Above advice is based on actual experience or just plain common sense. In the event said advise is determined to be incorrect you are entitled to a full refund of exactly what you paid for it.

My 2008 has this problem. It does not use oil but it has the cold start lifter noise. My dealer has replaced the lifters twice. The second time there was noise all of the time and they also replaced the cam, push rods, rockers, and oil pump. It still makes noise after all of that work. The problem first showed up at 3k miles.